产品介绍

M74HC238 3 to 8 Line Decoder

The M74HC238 is an high speed CMOS 3 TO 8 LINE DECODER fabricated with silicon gate C2MOS technology.

If the device is enabled, 3 binary select inputs (A, B and C) determine which one of outputs will go high. When enable input G1 is held "Low" or either G2A or G2B is held "High" decoding function is inhibited and all the 8 outputs go low. Three enable inputs are provided to ease cascade connection and application of this address decoder in memory systems.

All inputs are equipped with protection circuits against static discharge and transient excess voltage.

技术特性

• HIGH SPEED:
  • tPD = 15ns (TYP.) at VCC = 6V
• LOW POWER DISSIPATION:
  • ICC = 4µA(MAX.) at TA=25 °C
• HIGH NOISE IMMUNITY:
  • VNIH = VNIL = 28 % VCC (MIN.)
• SYMMETRICAL OUTPUT IMPEDANCE:
  • |IOH| = IOL = 4mA (MIN)
• BALANCED PROPAGATION DELAYS:
  • tPLH tPHL
• WIDE OPERATING VOLTAGE RANGE:
  • VCC (OPR) = 2V to 6V
• PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 238

M74HC238 订购信息

DATASHEET